"We are not keen to grant Greece more time, nor further (debt) writedowns. Greece must 'pay the price' first and then we can help them," he said, adding: "I don't want to be an extremist politician who would want to kick someone out from somewhere."

Euro zone finance ministers will attempt to close Greece's financing gap to 2014 when they meet again in Brussels next Tuesday, instead of finding a solution for as far ahead as 2020 as originally intended, a senior euro zone source told Reuters on Wednesday.